This tutorial teaches how to create a real-time dashboard using Vue.js and the open-source analytics API platform Cube, combined with Apache ECharts for charting and visualization. The process involves setting up Cube on a local machine, creating a new Vue.js project, installing the necessary packages, and generating schema files using the Cube Developer Playground. The tutorial then guides users through creating components to display data in tables and cards, as well as charts using Apache ECharts.